Add return_reg encodings for RISC-V.

2017-02-21 15:17:33 -08:00
parent a7d24ab1dc
commit 62334b26b4
5 changed files with 33 additions and 8 deletions
--- a/lib/reader/src/parser.rs
+++ b/lib/reader/src/parser.rs
@@ -1327,9 +1327,12 @@ impl<'a> Parser<'a> {
                }
            }
            InstructionFormat::ReturnReg => {
-                let raddr = try!(self.match_value("expected SSA value return addr operand"));
-                try!(self.match_token(Token::Comma, "expected ',' between operands"));
-                let args = try!(self.parse_value_list());
+                let raddr = try!(self.match_value("expected SSA value return address operand"));
+                let args = if self.optional(Token::Comma) {
+                    try!(self.parse_value_list())
+                } else {
+                    VariableArgs::new()
+                };
                InstructionData::ReturnReg {
                    opcode: opcode,
                    ty: VOID,